Defect generation of rutile-type SnO{sub 2} nanocondensates: Imperfect oriented attachment and phase transformation

Journal Article · Sat Apr 15 04:00:00 EDT 2006 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2006.01.035· OSTI ID:20784980

Tseng, W -J ^[1]; Pouyan, Shen ^[1]; Chen, S -Y ^[2]

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1. Institute of Materials Science and Engineering, National Sun Yat-sen University Kaohsiung, Taiwan (China)
2. Department of Mechanical Engineering, I-Shou University Kaohsiung, Taiwan (China)

The rutile-type SnO{sub 2} nanocondensates as condensed by Nd-YAG laser ablation on Sn target under oxygen background gas were characterized by analytical electron microscopy to have {l_brace}110{r_brace}, {l_brace}100{r_brace} and {l_brace}101{r_brace} facets, which are beneficial for {l_brace}{approx}hkl{r_brace} vicinal attachment to form edge dislocations, faults and twinned bicrystals. The {l_brace}011{r_brace}-interface relaxation, by shearing along <011> directions, accounts for a rather high density of edge dislocations near the twin boundary thus formed. The rutile-type SnO{sub 2} could be alternatively transformed from orthorhombic CaCl{sub 2}-type structure (denoted as o) following parallel crystallographic relationship (01-bar 1){sub r}//(01-bar 1){sub o}; [111]{sub r}//[111]{sub o}, and full of commensurate superstructures and twins parallel to (011) of both phases.

• OSTI ID: 20784980
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 4 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CALCIUM CHLORIDES
CRYSTALLOGRAPHY
EDGE DISLOCATIONS
ELECTRON MICROSCOPY
ORTHORHOMBIC LATTICES
PHASE TRANSFORMATIONS
RUTILE
TIN OXIDES